Thank you Tchan for your answer, really convincing. Tchans Ubuntu Touch channel in the Ubports forum is really great, and I love it.
I bought my first Xiaomi Redmi 7 in UK on ebay. First, it was returned due to lacking invoice, then the seller sent it by UPS to the wrong adress in UK, third attempt, she sent it with incomplete invoice. So I sent the invoice from ebay to the custom service. The device arrived. Unfortunately, it was a Redmi Note 7, and not a Redmi 7, so I will return it. Five weeks are gone now since I bought it.
The PinePhone I sold on ebay also arrived in Bergamo, Northern Italy after 5 weeks, due to Corona, and Italian mentality. Swiss post told me that it would be there in 7 days maximum.
Now, I bought a Xiaomi Redmi 7 on Ricardo Switzerland for 50 USD. A second one I missed, since someone was faster than me, but I will go in bidding.